ASSEMBLY

 

 

Improper assembly or adjustments

 

WARNING

 

can cause serious injury.

 

 

 

 

 

SEAT

1.Mount the Rear Cutting Unit Lifter and Seat Assembly

(A) to the mower frame using (2) 1/2" bolts, nuts, and washers (B).

2.Fasten the seat slides (C) to the bottom of the seat (D) using the fasteners provided with the slider mecha- nisms. Orient the slider so the adjuster lever (E) is on the operator's left hand side.

3.Remove the seat switch bracket (F, 1" x 10" bar)) mounted near the ends of the legs of the seat hinge. Discard the fasteners. Mount the seat and slider as- sembly onto the seat hinge (G). Replace the seat switch bracket and tighten fasteners. Plug the wire harness socket (H) into the seat safety switch (J). Use care in routing the wires so that they are not pinched by the switch lever or seat support mechanisms.

REAR CUTTING UNIT

1.Pivot the Seat Brace (A) from the axle so that the top end aligns with the tab at the back of the seat hinge assembly. Fasten with a 5/16" x 1" Hex Head Bolt, Lock Washer and Hex Nut.

2.Slide the rod end of the lifter tee (B) through the hole

(C)in the pad on the rear mower frame and secure it to the lift arm pivot with the cotter pin and washer as shown at (D).

3.Attach the Pull Rod (E) to the cutting unit Pivot Tube

(F)with Pin and Spacers.

NOTE: Before completing assembly, it will be necessary to adjust the drive belt tension. See "Rear Cutting Unit Drive Belt Tension" in the Maintenance section of this manual, page 23.

12

68OM-06/03

Page 12
Image 12
National Mower 68 SR, 68 DL owner manual Assembly, Seat, Rear Cutting Unit

68 SR, 68 DL specifications

The National Mower 68 DL and 68 SR are two outstanding models in the world of lawn care, engineered for efficiency and ease of use. Both mowers offer a range of features tailored to meet the needs of both residential and commercial users, making them popular choices among landscapers and homeowners alike.

The National Mower 68 DL is designed with durability and performance in mind. It features a robust steel deck that enhances longevity while providing a clean and even cut. Equipped with a powerful engine, the 68 DL delivers high torque and swift acceleration, enabling users to tackle even the toughest grass and rough terrain effortlessly. The mower's advanced cutting system ensures that grass is cut finely and evenly, reducing the need for additional clean-up.

On the other hand, the National Mower 68 SR offers a self-propelled option, allowing users to move with ease across various landscapes. This model incorporates hydrostatic transmission technology, which provides smooth, variable speed control. This feature is particularly beneficial for those who demand precision in their mowing tasks, as it allow for adjustments on the fly, catering to changing terrain conditions.

Both models come with adjustable cutting height options, offering users the flexibility to choose their desired grass length. The easy-to-use lever enables quick and simple adjustments without needing tools, making the mowing process more efficient. Additionally, both the 68 DL and 68 SR are designed with ergonomics in mind, featuring comfortable handles and intuitive controls that minimize operator fatigue.

Safety is another critical consideration in the design of the National Mower 68 series. Both models come equipped with protective shields and safety switches to prevent accidental starts, ensuring that users can operate the machines with confidence.

For convenience, the mowers also feature large, easy-roll wheels that enhance maneuverability. The inclusion of a bagging system offers an option for collection of grass clippings, contributing to a cleaner lawn appearance post-mowing.

In summary, the National Mower 68 DL and 68 SR combine advanced engineering with user-friendly features that prioritize performance and safety. They are exceptional choices for anyone looking to maintain a pristine lawn with minimal effort, making yard work a more enjoyable task. Whether for home use or professional landscaping, these mowers stand out in their class, delivering reliable performance time after time.